4G93T Problem when Boost Kick In

[samuel1121]

Walbro fuel pump is good and too good. When boosting, it will pump in lots more
fuel into your system. The problem is, you are having a oem system intact and
there is no way to alte the fuelling.

Get yourself the E-manage at least and those problem can be sorted out. It's
just a normal issue when using walbro with oem.

Can be easily rectified.

Yes,i agreed with bro cipas_supercas.
For my opinion, all brothers should be carefull of imitation walbro fuel pump.
for my customers, i would recommend Ps FUEL FLOW STABILIZER than walbro fuel pump.(300hp to 500hp =original fuel pump +Ps FUEL FLOW STABILIZER).This is because walbro fuel pump is mechanical and Ps FUEL FLOW STABILIZER is fully electronic.So it make sense that fully electronic is much more responsive than mechanical.

For those, who are aiming (500hp and 800hp onwards) i would recommend walbro fuel pump+Ps FUEL FLOW STABILIZER.

In kl, me and my tuner had solved a lot of car problems that are using other management such as apexi safc2,greddy emanage blue & ultimate,haltech,microtech,motec and etc.They have all changed to Ps-powersport.

Not that these piggyback branded management such as Greddy emanage blue & ultimate and safc2 not good.it is too complicated because it is fully digital.

For standalone management such as haltech,motec,microtech and etc even more complicated because it is fully digital and the tuner needs time and effort to tune it from the beginning till the end.Have u ever heard that any tuner that claims that he is the most expert?

For my tuner as he is 57 years old today still cannot claims that he is the best.If u ask him, he will definitely answer no. He will just say that he is just relying on Ps.

Ps is very user friendly and its universal to every car. Ps price also very reasonable compare to other branded products. With ps, u will definitely feel 100% satisfaction and every response u need.

Ps AIR FUEL ENHANCER TYPE 2 (AFE-808) is called HYBRID electronic management which combines digital & analog system. with this u can easily get fine or perfect tuning from half n hour to one hour or even 15 minutes. Do u know y?This is because we are using the original ECU. The original ECU is already perfect management which done by a group of professional engineers. They spend years doing research and then they ended up with a perfect
stock original Ecu. Stock original ecu no matter from any companies is already the best.Ok for Ps Afe-808,what is usage?Ps AFE-808 is needed only when u did minor modication or major modification on ur engine.When u did this modification on ur engine,ur original Ecu can't support.The AIR & FUEL mixture is not right anymore.So from there,the PS AFE-808 will help users to get the right tuning by adding or decreasing the air fuel mixture.

One more thing that i need to clarify, is if u didnt do some minor modication or major modification on ur engine and u install Ps AFE-808. There is no disadvantage.U will even feel ur car even more ligther and more responsive plus fuel economy depends how u step on ur throttle.Each time u install Ps gadgets,ur response will increase. when ur response increased, ur horsepower will definitely increase.I guarantee.

For those aiming response and horsepower, i would recommend Ps AIR FUEL ENHANCER TYPE 2, PS FUEL FLOW STABILIZER and PS BRISK SPARK ENERGIZER TYPE 2.
No worries guys. These items are universal to all cars. These items can be used on normal car also.Let say, one car now that is 200hp or 300hp on wheel is using above PS items. No need to worry. In future upgrading ur engine to 800hp or above, the PS items as mentioned as above will use back also. So no wasting $$$. Even in future if u switch to other car, these items used back.

we even bulit race car with 1300hp.ONLY using original ECU supported by PS gadgets.

after CNY, i will post a DYNO Chart on one satria 4g93 Na with bolt on urbo and then supported by ps gagdgets.BOOST ONLY 1 BAR. PRODUCE 260hp ON WHEEL.

even one of our sponsored drift car also using for our PS-POWERSPORT PRODUCTS.

 

[wirafly]

precision of boost meter dont have anything to do with being electronic or mechanical, its calibration that matters, but heck, no body even bother to calibrate their boost meter..
A manual boost meter is independent, hence no electrical or related issues.. an electronic one is neater as u dont need to run a hose to the meter, onli wires which are easier to manage. and it usually looks better in design.

I think I will go for electrical meter, easier to manage and arrange, :proud:

Bump:

sounds like a rich air fuel mixture

a case of overfueling, me thinks..

y did u have to go and change things when everything was working find? y did u changed the fuel pump?

Agreed !!!

, problem came out after replace fuel pump, it really sound like what you all comment, it running rich, logical thinking high flow fuel pump upgrade, from 100 to 255, original pressure regulator sure cannot lower down the pressure thus rich.

I change my fuel pump cause my friend told me it is advisable to change walbro fuel pump as mit original fuel pump tend to fail after sometime.

Oh ya, after change to walbro fuel pump, the car ilding become very very stable? too rich?

Bump:

try our Ps-powersport Air fuel enhancer type 2 and Ps-powersport Fuel flow stabilizer.
this will definitely solve all ur problems. With these items, ur car will get perfect tuning and ull response. for more info, pls log in into our website:http://www.ps-powersport.com or call sam 016-8121121.

You will amazed and shock once u use Ps-powersport Products.
Ps-powersport will provide every response u need. once u get the response, ur hp will definitely automatically increased.I gurantee.

How much will it cost include tuning? is it something similar alike AFC 5 button?

Walbro fuel pump is good and too good. When boosting, it will pump in lots more
fuel into your system. The problem is, you are having a oem system intact and
there is no way to alte the fuelling.

Get yourself the E-manage at least and those problem can be sorted out. It's
just a normal issue when using walbro with oem.

Can be easily rectified.

Oh, you means is a normal issue when we upgrade to walbro fuel pump? will a Fuel Pressure Regulator able to solve it or piggy back or both of it must in place?

 

[xtremeleo]

a simple FPR will do just fine, if everything elsee is stock. getting a piggy wud be good to further fine tuning, and get the best outta any engine setup dat u have, anytime

 

[drill]

hi bro,
i think i had the same problem before, but at that time i was using safc and aerospeed adj fuel reg to control my fueling. after i change my wiring to evo 2(my original wiring was a 1997 NA auto wiring and ecu), it was ok(without safc). the boost was ok but, the fuel consumption was very high.

Then I change my air flow to evo 3 and injectors to 510cc, also walbro255 fuel pump. A bit improvement to the fuel consumption.

So later on, I hook on to emanage, an now it is ok. Much much more better from the previous one.

But somehow, I still feel that even my car is running with tdo4l at boost 0.8, is very very slow....

so anyhow, just wondering, is your car is a BOT like mine running on NA wiring and ecu or is it original gsr? and for me, piggyback and adj fuel reg helps alot to resolve my problem which is similar to yours....

 

[yashiofactory]

hi there just want to share my opinion im agreewith what drill said......its ur car is BOT or what as i concern ur car fueling might be rich thats why the thing might be happen....because from what u said i mean ur car just a standard i mean everything is standard n why u r choosing to use those walbro why not u just upgrading to maybe evo fuel pump......normally people will use walbro when comes to upgrading to 2nd stage or 3rd stage whereby on this stage u might changing ur turbo and planning boosting at 1.2 to 1.5 bar bro.......my opinion better u use or standard or evo fuel pump......so far im using walbro those problem never been happened to me

 

[samuel1121]

Bro Wirafly,
For the PS AIR FUEL ENHANCER TYPE 2, it will cost Rm2000nett including installation & tuning.

recently,i have one customer who is using 1jz-gte(with 2jz injectors) managed by Safc 5 butons then changed to emanage ultimate.

My customer complained that he gave a lot of people tuning SAFC 5 buttons to boost up from 0.8 bar to 1 bar but falied. But when he switched to Ps-powersport AIR FUEL ENHANCER TYPe 2.He had no problem in boosting till 1.8bar.i even help him to down boost untill 0.8 bar to let him how is his response compare to safc 5 buttons(0.8bar) and emanage ultimate (0.8bar).He say that Ps is much more lighter and responsive than other two branded products.He state that when he is using emanage ultimate last time the idling was very bad and pressing the throttle was very heavy.he went back to look for his previous 3 tuners but not satisfied.

Untill that day when he choose PS_POWERSPORT, he felt 100% satisfaction.

NOTE: IF PS-POWERSPORT COME IN HAND, U dont need Fuel regulator anymore.

Above the pics on the left handside is PS AIR FUEL ENHANCER TYPE 2 with BUILT IN BOOST CUT ELIMINATOR.

Sam
PS-POWERSPORT
Marketing Division & Sales Technical Support
Speed Syndicate (M) SDN.BHD.
016-8121121

 

[cipan_supercas]

Oh, you means is a normal issue when we upgrade to walbro fuel pump? will a Fuel Pressure Regulator able to solve it or piggy back or both of it must in place?

As I said, Walbro is too good at supplying fuel. Too much fuel indeed. The more you boost, the more is the fuel until your engine suffocate.

You don't really need that fuel regulator cos that will only help to correct the pressure at idle but not when boosting. Your engine still suffocate. Get the piggyback at least as the first step to solve those problem. However, having both the piggyback and fpr do help a lot in another way.

The choice is yours and it's your affordability. Bear in mind again that having only the fpr will get you nowhere.

 

[wirafly]

hi bro,
i think i had the same problem before, but at that time i was using safc and aerospeed adj fuel reg to control my fueling. after i change my wiring to evo 2(my original wiring was a 1997 NA auto wiring and ecu), it was ok(without safc). the boost was ok but, the fuel consumption was very high.

Then I change my air flow to evo 3 and injectors to 510cc, also walbro255 fuel pump. A bit improvement to the fuel consumption.

So later on, I hook on to emanage, an now it is ok. Much much more better from the previous one.

But somehow, I still feel that even my car is running with tdo4l at boost 0.8, is very very slow....

so anyhow, just wondering, is your car is a BOT like mine running on NA wiring and ecu or is it original gsr? and for me, piggyback and adj fuel reg helps alot to resolve my problem which is similar to yours....

My car is not BOT, is original 4G93T terbalik version, which in my waja, I got the car from used car dealer, as usual I get my car serviced as well as change my fuel pump after got my car. everything work fined before I send for service.

From my observation, my car original running on evo fuel pump, which is 100lph version. the rest on the engine all stock include intercooler and its piping, only after market open pod air filter installed.

Bump:

hi there just want to share my opinion im agreewith what drill said......its ur car is BOT or what as i concern ur car fueling might be rich thats why the thing might be happen....because from what u said i mean ur car just a standard i mean everything is standard n why u r choosing to use those walbro why not u just upgrading to maybe evo fuel pump......normally people will use walbro when comes to upgrading to 2nd stage or 3rd stage whereby on this stage u might changing ur turbo and planning boosting at 1.2 to 1.5 bar bro.......my opinion better u use or standard or evo fuel pump......so far im using walbro those problem never been happened to me

I am using walbro cause my friend told me it is reliable and it is very important a reliable fueling to a turbo engine but I never think it bring me problem on it.

Bump:

Bro Wirafly,
For the PS AIR FUEL ENHANCER TYPE 2, it will cost Rm2000nett including installation & tuning.

recently,i have one customer who is using 1jz-gte(with 2jz injectors) managed by Safc 5 butons then changed to emanage ultimate.

My customer complained that he gave a lot of people tuning SAFC 5 buttons to boost up from 0.8 bar to 1 bar but falied. But when he switched to Ps-powersport AIR FUEL ENHANCER TYPe 2.He had no problem in boosting till 1.8bar.i even help him to down boost untill 0.8 bar to let him how is his response compare to safc 5 buttons(0.8bar) and emanage ultimate (0.8bar).He say that Ps is much more lighter and responsive than other two branded products.He state that when he is using emanage ultimate last time the idling was very bad and pressing the throttle was very heavy.he went back to look for his previous 3 tuners but not satisfied.

Untill that day when he choose PS_POWERSPORT, he felt 100% satisfaction.

NOTE: IF PS-POWERSPORT COME IN HAND, U dont need Fuel regulator anymore.

samuel1121, is your tuning on dyno machine? Mind to explain in more details on PS? How this device work? is it alter MAF signal to change fueling output? how about ignition timing and filter when boost kick in at different rpm (I heard different gear different boost kick in point, correct me if I am wrong)

 

[cikaro71]

I think I will go for electrical meter, easier to manage and arrange, :proud:

just bought autogauge boost, water temp + oil press from this seller-> http://www.zerotohundred.com/newfor...uge-stepper-motor-swiss-movement-gauge-7.html

best price and good service support. :proud:

 

[cipan_supercas]

Yes,i agreed with bro cipas_supercas.
For my opinion, all brothers should be carefull of imitation walbro fuel pump.
for my customers, i would recommend Ps FUEL FLOW STABILIZER than walbro fuel pump.(300hp to 500hp =original fuel pump +Ps FUEL FLOW STABILIZER).This is because walbro fuel pump is mechanical and Ps FUEL FLOW STABILIZER is fully electronic.So it make sense that fully electronic is much more responsive than mechanical.

For those, who are aiming (500hp and 800hp onwards) i would recommend walbro fuel pump+Ps FUEL FLOW STABILIZER.

In kl, me and my tuner had solved a lot of car problems that are using other management such as apexi safc2,greddy emanage blue & ultimate,haltech,microtech,motec and etc.They have all changed to Ps-powersport.

Not that these piggyback branded management such as Greddy emanage blue & ultimate and safc2 not good.it is too complicated because it is fully digital.

For standalone management such as haltech,motec,microtech and etc even more complicated because it is fully digital and the tuner needs time and effort to tune it from the beginning till the end.Have u ever heard that any tuner that claims that he is the most expert?

Through my experience, there are nothing wrong with all those gadgets. It's all in the expertise hands of the installers/tuners. Those barnded piggybacks are good unless it's been install and tune by the nuts. Even your PS product will work like shit if it's been install/tune by inexperience knows nothing tuners.

Every tuners have their own skill and knowledge. Not saying that they are not expert but when it comes to business, money making is on top of the list. I think you understand what I mean.

just bought autogauge boost, water temp + oil press from this seller-> http://www.zerotohundred.com/newfor...uge-stepper-motor-swiss-movement-gauge-7.html

best price and good service support. :proud:

Nothing of the above can help you solves your existing problem but it's nothing wrong if you have them installed.

 

[Walbro]

the walbro 255 lph mostly used when ur car are upgrading to stage 2 or higher mod. without any mods like FPR and management that can help stabilize the tuning, the fuel pressure will tend to go higher after installing Walbro FP. some of the tuners will use 190 lph walbro to avoid too much fuel feed into the engine. but for your own good, it is better for you to buy any management that can fine tune the air fuel ratio and FPR (fuel pressure regulator).

oh yeah, after you install the FPR (with a gauge), make sure that the fuel pressure don't drop instantly to 0 psi after shutting off the car (at least 30 minutes). this symptoms shows that there are leak in the fuel line (the walbro feed high pressure fuel). Most of the tuners that install FPR will change the fuel line to avoid the fuel line from being kinked because of high pressure fuel.

 

[samuel1121]

bro cipan_supercas,

i agreed what u say.So this y i introduce Ps.It is much more easier and user friendly. It saves time and effort.No big deal.No hard feelings.

Bump: Bro wirafly, u got pm

 

[HKS-GT2835R]

a simple FPR will do just fine, if everything else is stock.

.. he better make sure the afpr has a gauge so that he can tone down his fuel pressure!

afpr not oni can hike up fuel pressure, tune down can oso maa..

 

[Ivan54]

hi bro i had the same problem last time.i would suggest getting an adjustable fuel regulator and get your car tuned.for my case i got the same "flat spot" feel when it hits between 4.3k rpm to 5k rpm then suddenly the strong surge of boost kicks in back again.
after which i change to power enterprise 770cc injectors and get it tune up its working all good now.

 

[wirafly]

my prob just solved by

take out waja signal light, let cold air flow to my side mounted intercooler, thats all

and now power significantly increase and the engine sound also different when power kick in,

Bump: my prob just solved by

take out waja signal light, let cold air flow to my side mounted intercooler, thats all

and now power significantly increase and the engine sound also different when power kick in,

 

[speed2horizon]

Lolz... air flow in, MAF reads the amount, intercooler ineffective causes hot air to expand so low oxygen content. Rich combustion and feels sluggish...

Learn something today. Lolz....

 

[wirafly]

Lolz... air flow in, MAF reads the amount, intercooler ineffective causes hot air to expand so low oxygen content. Rich combustion and feels sluggish...

Learn something today. Lolz....

ya, so much different, guess I should say,

1. Rich AF after Fuel Pump
2. MAF read the air volumn and pressure
3. Intercooler ineffective causes hot air to expand so low oxygen content
4. Rich combustion
5. O2 give rich combustion signal to ECU Especially turbo kick in
6. ECU use leaner map, then too lean and hot air...knocking
7. ECU engaged in safe mode, check engine light on, rich AF + hot air, feel more sluggish

, thinking future upgrade will be front mounted intercooler, any suggestion on intercooler and piping and it cost?